Picture Based Questions Class 7 Science: By the help of the given picture, find out the answer for the following questions. Here on this page all Picture Based Questions helpful for You.
Nutrition in Plants
(1) Name the type of Nutrition
(Autotrophic, Heterotrophic, Saprotrophic, Parasitic, Holozoic)
(G) ______________
(2) Take a look at the picture and identify the Process and Elaborate it.
(3) What is a symbiotic relationship? Give some examples.
(4) Match the pictures with the following information mentioned below.
(a) Stomata | |
(b) Symbiotic Relationship |
|
(c) Saprotrophic Nutrition |
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(d) Chlorophyll |
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(e) Insectivorous plants |
Nutrition in Animals
(1) Label the parts of the Human Digestive System
(A) ______________.
(B) ______________.
(C) ______________.
(D) ______________.
(E) ______________.
(F) ______________.
(G) ______________.
(2) Match the following and state the number of teeth according to their sequence. State the number of teeth –
(1) Incisors |
(a) Used for grinding of food |
(2) Molars |
(b) Used for tearing of food |
(3) Canines |
(c) Used for crushing and grinding of food |
(4) Premolars |
(d) Used for cutting of food |
State the number of teeth –
1.) Incisors –
2.) Canines –
3.) Premolars –
4.) Molars –
(3) Name the process mentioned below and draw a flowchart of the process.
(4) Match the pictures with the information given below.
(a) Villi | |
(b) Oesophagus |
|
(c) Pseudopodia | |
(d) Ruminants |
Heat
(1) Differentiate between the pictures given below and write their uses along with their precautions.
(2) What is the normal temperature of human body?
(3) What is the range of a clinical thermometer?
(4) What is the range of a laboratory thermometer?
(5) What does the picture mentioned below show? Explain the process of transfer of heat.
(6) Fill in the blanks –
(1) Materials which allow heat to pass through them easily are called __________ of heat.
(2) Poor conductors are known as __________.
(3) Heat is transferred from the hotter end to the colder end of an object is known as _____________.
(4) Convection is ___________.
(5) From the sun the heat comes to us by another process known as _____________.
(7) By looking at the picture explain the types of breeze in brief. What is radiation?
(8) Differentiate the clothes that we can wear in summers and winters and justify your answer.
Acids, Bases and Salts
(1) Match the following pictures with the given information.
Sodium/Potassium hydroxide | |
Ascorbic acid (vitamin C) |
|
Lactic acid | |
Tartaric acid |
|
Acetic acid |
(2) Give two examples of each –
(1) Acidic substances: _______________ ________________.
(2) Basic substances: _______________ ________________.
(3) Natural indicators: _______________ ________________.
(4) Citric acid: _______________ ________________.
(5) Neutral solutions: _______________ ________________.
(3) What is neutralisation? Which indicators can be used?
(4) Look at the picture mentioned below and segregate them on the basis of their nature.
(5) Fill in the blanks:
(1) The most commonly used natural indicator is __________ It is extracted from __________.
(2) Acids taste ________________.
(3) Neutral solutions are ____________________.
(4) Nitric acid turns ___________________.
(5) Tooth decay is caused by the presence of _______________.
Physical and Chemical Changes
(1) Identify the following materials into pure / mixture substances
(2) Look at the pictures below and write the changes
(Physical/Chemical, Reversible/Irreversible, Slow/Fast)
(3) Balance the given equations
(1) P4O10 + H2O → H3PO4
(2) Al + HCl → AlCl3 + H2
(3) CO2 + H2O → C6H12O6 + O2
(4) Fill in the blanks
(1) A ________ is made up of molecules of the same kind.
(2) Mixtures are ___________ substances.
(3) Representation of chemical composition of a substance is called ____________.
(4) Reactants are ______________.
(5) One molecule of nitric acid is made up of ______________.
(5) Why does iron get rusted? It can get rusted in coming contact with
which substances?
Respiration in Organisms
(1) Label the diagram mentioned below and explain the functions of it.
(2) How do organisms breathe under water? What is the role of gills?
(3) Match the following pictures with the correct information.
(a) Exhalation | |
(b) Tracheae |
|
(c) Single celled organism | |
(d) Lungs and skin |
|
(e) Stomata |
(4) Write two examples of the following.
(1) Aerobic respiration: _____________ _____________.
(2) Anaerobic respiration: _____________ ____________.
(3) Breathing through Skin: _____________ ____________.
(4) Single celled organisms: _____________ ____________.
(5) Yeast is used to make: _____________ ____________.
(5) Write the reactions of the following:
(1) Aerobic respiration –
(2) Anaerobic respiration –
(3) Anaerobic respiration in muscle –
Transportation in Animals and Plants
(1) Look at the picture mentioned below and explain its circulation.
(2) Label the parts of the human heart
(3) Label the parts of Human excretory system
(4) Match the following pictures with the given information.
Cells which fight against germs that may enter our body. | |
Vascular tissue for transport of water and nutrients in the plants |
|
Haemoglobin | |
Filtration of the blood |
|
Amplify the sound of the heart |
(5) Fill in the blanks (write the specific unit wherever required)
(1) The clot is formed because of the presence of another type of cells in the blood is called ___________.
(2) A resting person has a pulse rate between _______ and __________.
(3) Veins are the vessels which carry ___________ from all parts of the body back to the heart.
(4) From the kidneys the urine goes into urinary bladder through tube called ___________.
(5) An adult human being normally passes about __________ of urine In 24hrs.
(6) The urine consists of _________of water, ________ urea and _________ other waste products.
Reproduction in Plants
(1) Look at the diagram mentioned below and explain the process.
(2) Explain the process of spore formation.
(3) Label the Reproductive parts of the diagram mentioned below.
(4) Explain zygote formation. What is pollination?
(5) Fill in blanks:
(1) Sexual reproduction involves the fusion of ___________.
(2) Flower is the __________part of a plant.
(3) Fertilised egg is called _________. Zygote develops into an_________
(4) Fertilisation is ___________.
(5) A flower may have either male or female reproductive parts. Such a flower is called ___________.
Motion and Time
(1) Name the types of clocks by the pictures mentioned below and explain the measurement of time.
(2) What is speed? Write its formula.
(3) Differentiate between a speedometer and an odometer
(4) Match the following pictures with the information given below:
Simple pendulum | |
Oscillation |
|
Non uniform motion | |
Uniform motion |
|
Clock |
(5) Fill in the blanks:
(1) The basic unit of time is ________.
(2) The time taken by the pendulum to complete one oscillation is called its ________.
(3) The pendulum is said to have completed one oscillation when ___________.
(4) The speed of the train is expressed in __________.
(5) The plucked string of a guitar has a _______ motion.
Electric Current and its Effects
(1) Write the symbols of the electric component mentioned below.
(1) Electric Cell
(2) Switch in ‘ON’ Position
(3) Wire
(4) Electric Bulb
(5) Switch in ‘OFF’ Position
(6) Battery
(2) Match the following pictures with the given information.
Closed circuit | |
Circuit of an electric bell |
|
Effect of current on a compass needle | |
Open circuit |
|
An electromagnet |
(3) Fill in the blanks:
(1) A combination of two or more cells is called ___________.
(2) The coil of wire is called an ________.
(3) Electromagnets are ___________.
(4) To make a battery of two cells the negative terminal of one cell is Connected to the __________ of the other cell.
(5) An electric bell is ____________.
(4) Explain the heating effect of the electric current.
(5) What is Hans Christian Oersted?
Light
(1) Which of the following is a concave lens and convex lens and justify your answer.
(2) How can you distinguish between a real image and a virtual image? By looking at the picture identify which image is real.
(3) Look at the picture mentioned below and explain its theory.
(4) Match the following pictures with the correct information.
White light | |
image is erect, virtual Smaller in size than the object |
|
Plane mirror | |
rear view |
|
produce enlarged image |
(5) Fill in the blanks:
(1) Light travels along ____________.
(2) A real image is an image _____________.
(3) A convex _________ can form real and inverted image
(4) A virtual image larger than the object can be produced by ________.
(5) We can obtain an enlarged and erect image by ____________.
Forests: Our Lifeline
(1) Explain the interrelationship of plant, soil and decomposers in a forest by looking at the diagram.
(2) Look at the pictures below and identify the cause of the problem and write the necessary precautions we need to take.
(3) Which of the following pictures is not a forest product?
(4) Micro-organsisms act upon the dead plants to produce
(5) Fill in the blanks:
(1) The ________ form the lowest layer of vegetation.
(2) Forests protect the soil from __________.
(3) The various components of the forest are __________ on one another.
(4) Forest is also called _________living _______ full of life and vitality.
(5) The micro-organisms which convert the dead plants and animals to humus are known as __________.
Wastewater Story
(1) Explain water cycle in brief, refer to the diagram mentioned below.
(2) How does ground water act as an important source of water? Explain it with the help of the diagram. What is aquifer?
(3) Match the following pictures with the given information
Aquifer | |
Drip irrigation |
|
Bawris | |
Rainwater harvesting |
|
Seeping of water into the ground |
(4) What is the effect of water scarcity on plants?
(5) Fill in the blanks:
(1) The three forms of water are _______.
(2) World water day is on _________.
(3) Year ________ was observed as the International Year of Freshwater to make people aware of this dwindling natural response.
(4) __________ of earth’s surface is covered with water.
(5) Depletion is ______________.
Weather, Climate and Adaptations of Animals
(1) Write the adaptations of polar bear.
(2) Match the following pictures with the given information.
Kerala |
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Polar region |
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Tropical rainforests |
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Jammu and Kashmir |
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Migratory birds |
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Rajasthan |
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North-east India |
(3) Fill in the blanks –
(1) All the changes in the weather are driven by __________.
(2) Sticky pads on feet indicate ____________.
(3) A carnivore is likely to found in _____________.
(4) _____________ changes during the year.
(5) The average weather taken over a long time is called _______________.
(4) Give two examples of each.
(1) Elements – ____________ ____________
(2) Special thermometers – ____________ ____________
(3) Typical desert climate – ____________ __________
(4) Adaptation in polar region – _____________ ___________
(5) Carnivorous animals – _____________ ___________
Fibre to Fabric
(1) Rearrange the following pictures in stepwise manner of fibre to wool making.
(2) Arrange the following pictures in life history of silk moth. What is Pupa?
(3) Match the following pictures with the given information.
Angora goat | |
Alpaca |
|
Llama | |
Yak |
|
Goat |
(4) Fill in the blanks:
(1) The sheared skin with hair is thoroughly washed in tanks to remove grease, dust and dirt. This is called __________.
(2) Shearing is __________.
(3) Wool is obtained from the _______.
(4) The most common silk moth is __________.
(5) During these movements of the head, the caterpillar secretes fibre made of a ___________which hardens on exposure to air and becomes __________.
(5) Describe in brief about sericulture.
Soil
(1) Look at the picture below and label the layers of soil. What is soil profile? Explain in brief.
(2) Match the layers of soil profile with the following pictures mentioned below.
A horizon | |
B horizon |
|
C horizon | |
Bedrock |
(3) Match the following types of soils and justify your answer.
sandy soil | |
loamy soil |
|
clayey soil |
(4) What is percolation rate of water in soil. Percolation rate (ml/min) =?
(5) Explain the absorption of water in soil with the help of diagram.
(6) Give two examples of each.
(1) Soil contains – _________ ________.
(2) Sandy soil – _________ ________.
(3) Loamy soil – ________ ________.
(4) Clayey soil – ________ ________.
(5) Living organism is soil – ________ _______.
(6) Ways to prevent soil pollution – ________ _______.
(7) Clay and loam are suitable for cereals like – _______ ______.
Class 7 Science chapter-wise Answer Key PDF:
Nutrition in Plants |
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Nutrition in Animals | |
Heat |
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Acids, Bases and Salts | |
Physical and Chemical Changes |
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Respiration in Organisms | |
Transportation in Animals and Plants |
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Reproduction in Plants | |
Motion and Time |
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Electric Current and its Effects | |
Light |
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Forests: Our Lifeline | |
Wastewater Story |
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Weather, Climate and Adaptations of Animals | |
Fibre to Fabric |
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Soil |